The penetration of rainwater through walls depends on the following combination of conditions: • the presence of water • openings in the assembly that permit water to enter • forces that can move water through the assembly. The control of rainwater penetration depends on being able to control any one or all of these conditions. Rain penetration creates problems ranging from damage to interior f...

[1] Water-level increase after rainfall is usually indicative of rainfall recharge to groundwater. This, however, may not be true if the Lisse effect occurs. This effect represents the water-level increase in a well driven by airflow induced by an advancing wetting front during highly intensive rains. The rainwater, which may behave like a lowpermeability lid, seals the ground surface so that t...

In today’s world renewable energy is highly demanding because of increasing oil and fuelprices, desire and necessity to avert irreversible climate damage and also the unreliability of the non -renewablesources. In renewable energy, water is an important source. Previously water is used only for survivalof human being as much as food but no attentionhas been givenen to economical use and conserv...

J This note on the purification of the watersupply of the Lawrence Military Asylum, Sanawar, may prove useful to medical officers, by reminding them of the ease with which even very large quantities of water can be rendered fit for drinking purposes at a very low cost, and with the most primitive of apparatus, by means of bleaching powder. The water-supply of the Asylum is derived from a spring...

Water Erosion Prediction Project (WEPP), a process based erosion model that computes spatial and temporal distributions of surface runoff, soil loss and sediment deposition from overland flow on hillslopes and soil loss and sediment deposition from concentrated flow in small channels. In the present study, surface runoff and soil loss were simulated in a mini watershed (57 ha) of Sitlarao water...

To obtain fundamental information for assessing water resources and predicting natural hazards caused by heavy rains, rain precipitation data in central Japan have been analyzed statistically and geostatistically using data of AMeDAS (Automated Meteorological Data Acquisition System) established by Meteorological Agency of Japan. The study area is the mountainous Chubu and plain Kanto districts...

[1] We examined the effects of snow, event size, basin size, and forest harvest on floods using >1000 peak discharge events from 1953 to 2006 from three small (<1 km), paired‐watershed forest‐harvest experiments and six large (60–600 km) basins spanning the transient (400–800 m) and seasonal (>800 m) snow zones in the western Cascades of Oregon. Retrospectively classified rain‐on‐snow events de...

4 Abstract — Satellite communication systems operating at Ku (12/14 GHz) and Ka band (20/30 GHz) frequencies are used for broadband multimedia and internet based services. At these frequencies, the signal will be affected by various propagation impairments such as rain attenuation, cloud attenuation, tropospheric scintillation, ionospheric scintillation, water vapour attenuation, and rain and i...